EP 0631983 B1 20000503 - Crystalline titanium oxides
Title (en)
Crystalline titanium oxides
Title (de)
Kristalline Oxide des Titans
Title (fr)
Oxydes cristallins du titane
Publication
Application
Priority
DE 4322022 A 19930702
Abstract (en)
[origin: EP0631983A1] Crystalline oxides of titanium having the general formula I [Tix(m<*>D1-x)(2n/3<*>E1-x)]O2 (I), in which D represents silicon or germanium, E represents cerium or aluminium and x is from 0.06 to 0.9 and m = 1 if n = 0 or m = 0 if n = 1, which oxides are preferably prepared hydrothermally, e.g. by crystallisation of titanium alkoxides (RO)4Ti, in which R denotes C1- to C20-alkyl, with silicon, germanium, cerium or aluminium compounds in aqueous medium at temperatures of from 50 to 300 DEG C and pressures of from 1 to 50 bar, optionally in the presence of amines or organic ammonium salts.
IPC 1-7
C01B 39/08; C01B 39/46; C01B 39/00; C01B 39/06; B01J 29/89; B01J 29/04
IPC 8 full level
B01J 29/04 (2006.01); B01J 29/89 (2006.01); C01B 39/00 (2006.01); C01B 39/06 (2006.01); C01B 39/08 (2006.01); C01B 39/46 (2006.01); C01G 23/00 (2006.01)
CPC (source: EP)
B01J 29/89 (2013.01); C01B 39/06 (2013.01); C01B 39/085 (2013.01); C01G 23/003 (2013.01); C01P 2002/72 (2013.01); C01P 2006/12 (2013.01)
Designated contracting state (EPC)
BE DE FR GB NL
DOCDB simple family (publication)
EP 0631983 A1 19950104; EP 0631983 B1 20000503; DE 4322022 A1 19950112; DE 59409316 D1 20000608
DOCDB simple family (application)
EP 94109818 A 19940624; DE 4322022 A 19930702; DE 59409316 T 19940624